Gas-burner.



. :PATENTE D MAY, 3 1904. E. R UUD. v Y GAS BURNER.-

APPLICATION FILED DEC. 18, 1903 no MODEL. v

Q, 'I'NVEIIT .and the perforated burneri STATES- Patented May 31, 1904.

PATENT OFFICE.

EDWIN RUUD', OF PITTSBURG, PENNSYLVANIA.

GAS-BURNER."

' sP cIFIoA- rIoNro m part of Letters tI atentNo. 761,4 9, dated Ma '3 4 Application filiedDecei1iber18,1963 Serial No. 185,637. on model.) i

Tola/Z l whom concern I Be it known that I, EDWINRUUD, of Pittsburg, in thecounty-of Allegheny and State of Pennsylvania, have invented a certain new.

and useful Improvement in Gas-Burners, of which improvement the following is a specification.

r The object of my invention is to provide a gas-burner specially adaptable to application and use in connection with water-heaters and also desirably available in heating apparatus of other descriptions, in the operation of which flashing or back-firing shall be effectually prevented, the flame of the burner be properly directed upon the object to be heated, plate protected from the access of water.

The improvement claimed is hereinafter fully set forth.

In the accompanying drawings, Figure 1 is a front view in elevation of a gas-burner, illustrating an embodiment of my invention; Fig. 2, a vertical section through the same on the line a a of Fig. 1; Fig. 3, a front view of the upper portion of the burner with the capplate removed; Fig. 4, a horizontal section on the line Z) 6 of Fig. 1, and Fig. 5 a similar section on the line 0 c of Fig. 2.

My invention is herein shown as applied'in connection with a gas and air mixer of the ordinary type, the same consisting of a tubular body or shell 1, which surrounds a supplypassage 2 for gas and air and is flared or con-- ically enlarged at its lower end, which-is open for the reception of air and into which'a gassupply pipe 3 projects for a short distance. The upper portion of the body 1 is enlarged, so as to form a discharge-chamber 1, which is preferably, as shown, ofrectangular section and is entirely open at its front.

A burner-plate a, which may be either of perforated metal or wire-gauze, is fittedover the open front of the discharge-chamber and is held in substantially vertical position thereon by a cap-plate 5 of similar contour to the discharge-chamber,- between which plate and the discharge-chamber the burner-plate is clamped by screws 6. Inturned flanges are formed on the sides of the-cap-plate, which abut against the burner-plate at its edges, so

- as to maintain a space between the cap-plate and the remainder] of the burner-plate, as shown in Figs. 2 and 4:, and a discharge-opening 5 extends across the upper portion ofthe cap-plate. An inclined rear wall 5 extends across the capplate behind the dischargeopening thereof, said wall being prolonged outwardly beyond the face of the opening,

a'nda guard-plate 5 extends downwardly and rearwardly from-the top of the wall 5 terminating in a plane in rear of the joint'between the discharge chamber and cap. The guard plate may, if preferred, be formed by a rearward extension fromthe end of the wall 5 instead of starting'near its top, as shown.

In operation combustion of the mixture of gas and air which enters the discharge-chamheated, to the joint between the dischargechamber and cap -plate and the interposed burner-plate.

. I claim as my invention and desire to secure by Letters Patent I 1. The combination, with a gas and air mixing chamber, of an expanded discharge-chamber having an'open front, a direct passageway connecting said mixing-chamber with said discharge chamber and open front, a foraminous burner-plate extending across the front of said discharge-chamber, and a capplate secured to the discharge-chamber in front of the burner-plate and having an upper discharge-opening. I

2. The combination, with a gas and air mixing chamber, of. a discharge-chamber extended laterally beyond the body of the mixingchamber, and having an open front, a direct with said discharge-chamber and open front, a foraminous burner-plate extending across the front of said discharge-chamber and a capplate secured to the discharge-chamber in front of the burner-plate and having an upper and substantially continuous discharge-opening.

3. The combination with a gas and air mixing chamber, of an expanded discharge-chamber having an open front, a direct passage- Way connecting said mixing-chamber With said discharge chamber and open front, a foraminous-burner-plate extending across the frontof said discharge-chamber, a cap-plate covering the front of said discharge-chamber and having an upper and continuous dischargeopening extending substantially the entire width of the expanded discharge-chamber and connections by which the burnerplate is clamped in position between the discharge-chamber and capplate.

4:. The combination with a gas and air mixing chamber, of an expanded discharge-chamber having an open front, a direct passageway connecting said mixing-chamber with said discharge-chamber and open front, a foraminous burner-plate extending across the front of said discharge-chamber, a cap-plate covering the front of said discharge-chamber and having an upper discharge-opening and connections by which the burnerplate is clamped in position between the dischargechamber and cap-plate.

5. The combination, with a gas and air mixer, of a discharge-chamber having an open front, a foraminous burner-plate extending across the front of said chamber, a cap-plate secured to the discharge-chamber in front of the burner-plate and having an upper discharge-opening, and a guard-plate extending rearwardly on the cap-plate beyond the joint between said plate and the dischargechamber.

EDWIN RUUD. Witnesses:

J. SNowDEN BELL, J AMES C. HERRoN. 

